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Holger Hans Peter Freyther holger at freyther.deOn 07/16/2011 01:49 PM, Harald Welte wrote: > Hi! > > I've started to play a bit with Smatch (http://smatch.sourceforge.net/) > and fixed a number of bugs in libosmocore. > > When applying it to openbsc, I get: > > CC ipaccess.o > /home/laforge/projects/git/openbsc/openbsc/src/libabis/input/ipaccess.c +455 ipaccess_drop(28) info: loop could be replaced with if statement. > /home/laforge/projects/git/openbsc/openbsc/src/libabis/input/ipaccess.c +451 ipaccess_drop(24) info: ignoring unreachable code. > > The point herer is: we loop over a list, but we return from the first > iteration of the loop. Zecke? yes, it can be done with if (!llist_empty()), only ugly part is to access the first element and cast it. Will fix it today. > CC paging.o > /home/laforge/projects/git/openbsc/openbsc/src/libbsc/paging.c +134 can_send_pag_req(25) info: ignoring unreachable code. > > We have a goto statement in each possible caes (including defualt) above > it. So the return 0 will never be hit. That's ok and not a bug. But I > think the code is too convoluted this way. I think we should have one > function that just returns (sdcch/tch) based on the rsl_type and > net->pag_any_tch, and then a second function that has a simple if/else. > > I'm not against goto - but I think this time it really can be avoided > easily. Okay, will clean this up a bit. > > CC ipaccess-firmware.o > /home/laforge/projects/git/openbsc/openbsc/src/ipaccess/ipaccess-firmware.c +64 ipaccess_analyze_file(26) warn: buffer overflow 'firmware_header->more_magic' 2 <= 2 > /home/laforge/projects/git/openbsc/openbsc/src/ipaccess/ipaccess-firmware.c +64 ipaccess_analyze_file(26) warn: buffer overflow 'firmware_header->more_magic' 2 <= 3 > > zecke? Will take a look. > CC bsc_nat.o > /home/laforge/projects/git/openbsc/openbsc/src/osmo-bsc_nat/bsc_nat.c +1553 get_next_free_bsc_id(20) info: ignoring unreachable code. > > zecke? looks like a bogus break in there, will test.